/* ---------- hero ---------- */
.hero{
  background:var(--primary); color:#F3EAF8; border-radius:0 0 28px 28px;
  position:relative; overflow:hidden;
}
.hero::before{
  content:""; position:absolute; inset:0;
  background-image: radial-gradient(circle at 8px 8px, rgba(255,255,255,0.08) 1.5px, transparent 1.5px);
  background-size:28px 28px; opacity:0.5; pointer-events:none;
}
.hero .wrap{position:relative;padding-block:64px 56px;}
.hero-grid{display:grid;grid-template-columns:1.1fr 0.9fr;gap:48px;align-items:center;}
@media (max-width:900px){ .hero-grid{grid-template-columns:1fr;} }
.hero-eyebrow{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:0.09em;text-transform:uppercase;
  color:var(--gold-soft);font-weight:500;
}
.hero h1{font-size:clamp(30px,4.2vw,46px);line-height:1.12;color:#FFFFFF;margin-block:14px 18px;}
.hero p.lede{font-size:16.5px;color:#E4D3EE;max-width:52ch;}
.hero-stats{display:flex;gap:28px;margin-top:32px;flex-wrap:wrap;}
.hero-stat b{display:block;font-family:var(--font-display);font-size:26px;color:#fff;font-variant-numeric:tabular-nums;}
.hero-stat span{font-size:12.5px;color:#CBB3D9;}

/* chain diagram */
.chain{position:relative;display:flex;justify-content:space-between;gap:6px;}
.chain::before{
  content:"";position:absolute;top:27px;left:27px;right:27px;height:2px;
  background:rgba(255,255,255,0.28);z-index:0;
}
.chain-node{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:10px;flex:1;min-width:0;text-decoration:none;}
.chain-node .dot{
  width:54px;height:54px;border-radius:50%;background:var(--primary);border:2px solid var(--gold-soft);
  display:flex;align-items:center;justify-content:center;color:#F3EAF8;flex-shrink:0;
  transition:background .15s,border-color .15s,transform .15s;
}
.chain-node:hover .dot{background:var(--gold);border-color:#fff;transform:translateY(-2px);}
.chain-node .dot svg{width:24px;height:24px;}
.chain-node label{font-size:12px;font-weight:600;color:#EBDCF1;text-align:center;line-height:1.3;}
.chain-node:hover label{color:#fff;}
.chain-support-note{
  display:block;margin-top:20px;font-size:12.5px;color:#CBB3D9;text-decoration:none;
  border-top:1px dashed rgba(255,255,255,0.25);padding-top:14px;
}
.chain-support-note:hover{color:#fff;}
@media (max-width:520px){
  .chain{flex-direction:column;align-items:flex-start;gap:18px;}
  .chain::before{top:0;bottom:0;left:27px;right:auto;width:2px;height:auto;}
  .chain-node{flex-direction:row;align-items:center;text-align:left;}
  .chain-node label{text-align:left;}
}

/* ---------- generic section heading ---------- */
.section-head{max-width:62ch;margin-bottom:36px;}
.section-head h2{font-size:clamp(24px,3vw,32px);margin-top:8px;}
.section-head p{color:var(--ink-soft);margin-top:12px;font-size:15.5px;}

/* ---------- why cards ---------- */
.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;}
.why-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:24px;display:flex;flex-direction:column;gap:14px;}
.why-card .icon{width:42px;height:42px;border-radius:10px;background:var(--primary-wash);display:flex;align-items:center;justify-content:center;color:var(--primary);}
.why-card .icon svg{width:22px;height:22px;}
.why-card h3{font-size:17px;font-weight:700;font-family:var(--font-body);}
.why-card p{color:var(--ink-soft);font-size:14.5px;}

/* ---------- architecture ---------- */
.arch{background:var(--surface-alt);border-radius:24px;}
.arch-list{position:relative;display:flex;flex-direction:column;gap:28px;max-width:760px;}
.arch-list::before{content:"";position:absolute;left:22px;top:22px;bottom:22px;width:2px;background:var(--border);}
.arch-layer{position:relative;display:grid;grid-template-columns:44px 1fr;gap:20px;}
.arch-layer .num{
  position:relative;z-index:1;width:44px;height:44px;border-radius:12px;background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-weight:500;font-size:15px;
}
.arch-layer .content{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:18px 20px;}
.arch-layer h3{font-size:16.5px;font-family:var(--font-body);font-weight:700;margin-bottom:6px;}
.arch-layer p{color:var(--ink-soft);font-size:14px;margin-bottom:8px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{font-family:var(--font-mono);font-size:11.5px;background:var(--neutral-pill);color:var(--ink-soft);padding:4px 9px;border-radius:6px;}

/* ---------- checkpoints ---------- */
.cp-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px;}
.cp-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:22px;display:flex;flex-direction:column;gap:12px;}
.cp-card .top-row{display:flex;align-items:center;justify-content:space-between;}
.cp-card .icon{width:40px;height:40px;border-radius:10px;background:var(--primary-wash);color:var(--primary);display:flex;align-items:center;justify-content:center;}
.cp-card .icon svg{width:20px;height:20px;}
.cp-card .ordinal{font-family:var(--font-mono);font-size:11px;color:var(--ink-faint);}
.cp-card h3{font-size:16px;font-family:var(--font-body);font-weight:700;}
.cp-card ul{display:flex;flex-direction:column;gap:7px;}
.cp-card li{display:flex;gap:8px;font-size:13.5px;color:var(--ink-soft);align-items:flex-start;}
.cp-card li svg{width:15px;height:15px;flex-shrink:0;margin-top:2px;color:var(--success);}

/* ---------- preview table ---------- */
.preview-note{font-size:13px;color:var(--ink-faint);font-style:italic;margin-bottom:16px;}
.table-scroll{overflow-x:auto;border:1px solid var(--border);border-radius:14px;background:var(--surface);}
table{width:100%;border-collapse:collapse;min-width:560px;}
thead th{
  text-align:left;font-size:12px;letter-spacing:0.04em;text-transform:uppercase;color:var(--ink-faint);
  font-weight:600;padding:14px 18px;border-bottom:1px solid var(--border);font-family:var(--font-mono);
}
tbody td{padding:14px 18px;border-bottom:1px solid var(--border);font-size:14.5px;}
tbody tr:last-child td{border-bottom:none;}
td.mono{font-family:var(--font-mono);font-size:13px;color:var(--ink-soft);font-variant-numeric:tabular-nums;}